The Effect of Pressure on Solid Polymer Electrolytes/Salt Systems : The Modified Double Lattice Model

초록

In recent year, several research institutes have been developing batteries with solid electrolytes. Research efforts have been growing each year. The aim of these efforts has been to identify solid polymer electrolytes(SPE) with a high conductivity. Investigating the manufacturing process of lithium polymer electrolyte and electrode, there is a pressure imposed on the SPE to improve the degree of contact between electrolyte and electrode. Physical properties of the compressed SPE system would be totally different from those of the incompressed SPE system. In this study, We combined two theories to take into account the pressure effect of the given systems : theory of melting point depression and the modified double lattice model. We then compare the proposed model with experimental data to show the change of liquidus curve and an eutectic point with various pressure.